Precision ASTM A519 4130 Alloy Mechanical Cold Rolled Seamless Steel Tube

Precision ASTM A519 4130 Alloy Mechanical Cold Rolled Seamless Steel Tube   Grade C Si Mn P S Cr Mo 4130 0.28-0.33 0.15-0.35 0.40-0.60 0.040 max 0.040 max 0.80-1.10 0.15-0.25 Grades Delivery Conditions Tensile Strength Rm (Mpa) Yield Strength R2 (Mpa) Elongation in the longitudinal direction Al (%) 4130 SR 724 min 586 min 10 min 4130 A 517 min 379 min 30 min 4130 N 621 min 414 min 20 min Application: High Precision Cold Rolled Seamless Steel Tube is used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required. Main Features: 1. Inner and outer walls of tube have high accuracy. 2. Excellent brightness. 3. No oxidization after heat treatment 4. High cleanness inside tube. Sizes Range: OD:5mm-220mm, WT:0.5mm-25mm Delivery Conditions: +C Hard. No final treatment after final cold drawing. +LC Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area). +SR Stress Relieved. After final cold drawing, the tubes are stress relieved in a controlled atmosphere. +A Annealed. After final cold drawing, the tubes are annealed in a controlled atmosphere. +N Normalized. After final cold drawing, the tubes are normalized in a controlled atmosphere.    Tube Finishing Options: Our tubes can be additionally treated to achieve the exact finishes and ends needed by customers. These are some of the additional operations that can be performed on our tube:Drawing, Heat treatment, Bulging, Swaging, Cutting, Deburring, Vibro cleaning, Threading,De-rusting, Chamfering, Washing. Surface treatment:  Oiled, black painted, hot dipped galvanized or phosphate coating as required. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested. Standard and Optional Testing: Visual and dimensional test 100%. Eddy current test 100% acc. to EN 10246-3. Ultrasonic test 100% acc. to EN 10246-7. Chemical composition. Impact test. Package: 1. Bundle Packing. 2. Plain end or vanished as per customer’s request. 3. Wrapped in waterproof paper. 4. Sackcloth with several steel strips. 5. Pack in heavy tri-wall boxes. Mill Test Certificate: The product is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.   Our Services: Third Party inspection acceptable. such as SGS, BV etc. Supplying financial support with usance L/C 180 days after B/L date. >>>Standard ASTM A519 Seamless Carbon and Alloy steel Mechanical Tubing DIN 2391 Seamless Precision Steel Tubes BS 6323 Seamless and Welded Steel Tubes for Automobile, Mechanical and General Engineering Purposes >>>Steel Grades ASTM: 1020 1045 4130 DIN: St35 St52 BS: CFS4 CFS5 CFS10